<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>MAA main</title>
</head>
<body>
Welcome to Martial Arts Academy!
<form action="/maa/do"><br>
    <%--you should do it context-indep way for action"/maa/do"--%>
    <input type="hidden" name="action" value="GET/login">
    Log into your account: <input type="submit" value="log in"/>
</form>
<form action="/maa/do">
    <input type="hidden" name="action" value="GET/register">
    Do not have an account yet? Register here: <input type="submit" value="register"/>
</form>
</body>
</html>